YELLOW-BREASTED CHAT. Icteria virens. Char. Above, olive; lores black; throat and breast rich yellow;belly white. Length 7 to 8 inches. Nest. In a thicket 2 or 3 feet from the ground ; of dried leaves, stripsof bark, or grass lined with fine grass or fibres. Eggs. 3-4; white, with pink tint, spotted with brown and lilac; 0.90X 0.70. This remarkable bird is another summer resident of theUnited States which passes the winter in tropical America,being found in Guiana and Brazil, so that its migrations prob¬ably extend indifferently into the milder regions of bothhemispheres. Even the birds essentially tropical are stillknown to migrate to different distances on either side theequator, so essential and necessary is this wandering habit toalmost all the feathered race. The Icteria arrives in Pennsylvania about the first week inMay, and does not usually appear to proceed farther north andeast than the States of New York or Connecticut, To thewest it is found in Kentucky, and ascends the Ohio to theborders of Lake Erie. In the distant interior, however, nearthe Rocky Mountains, towards the sources of the Arkansas,this bird was observed by Mr. Say, and Mr. Townsend saw it